Home / 15,619.25-23,431.31-5,086.78

Finding the Fourth Proportional to 15,619.25, 23,431.31 and 5,086.78

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Solution

The fourth proportional to 15,619.25, 23,431.31 and 5,086.78 is: 7,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.25 : 23,431.31 = 5,086.78 : x
  2. Step 2: Convert to fraction form
    15,619.25/23,431.31 = 5,086.78/x
  3. Step 3: Cross multiply
    15,619.25x = 23,431.31 × 5,086.78
  4. Step 4: Simplify right side
    15,619.25x = 119,189,919.08
  5. Step 5: Solve for x
    x = 119,189,919.08/15,619.25
  6. Step 6: Final answer
    x = 7,630.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.